Motor amplitudes may predict electromyography‐confirmed radiculopathy in patients referred for radiating limb pain
ABSTRACT Introduction: Radiculopathy is diagnosed by needle electromyography, with nerve conduction studies excluding alternative diagnoses. Methods: In patients referred for electrodiagnostic evaluation of radiating limb pain, we compared ulnar motor amplitudes between those with and without electr...
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| Veröffentlicht in: | Muscle & nerve 2019-05, Vol.59 (5), p.561-566 |
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| creator | McNeish, Brendan Hearn, Sandra Craig, Anita Laidlaw, Ann Ziadeh, Mark Richardson, James K. |
| description | ABSTRACT
Introduction: Radiculopathy is diagnosed by needle electromyography, with nerve conduction studies excluding alternative diagnoses. Methods: In patients referred for electrodiagnostic evaluation of radiating limb pain, we compared ulnar motor amplitudes between those with and without electromyographically confirmed C8 radiculopathy, as well as fibular motor amplitudes between those with and without electromyographically confirmed L5 radiculopathy. Results: Patients with electromyographically confirmed C8 or L5 radiculopathy demonstrated decreased ulnar or fibular motor amplitudes, respectively, as compared to patients without radiculopathy. Receiver operating characteristic curves demonstrated good diagnostic accuracy, with areas under the curve of 0.85 and 0.82, respectively. Optimal cut‐offs for electromyographically confirmed C8 and L5 radiculopathies were 10.2 mV and 3.6 mV, respectively, with associated sensitivities/specificities of 0.86/0.74 and 0.92/0.60. Discussion: Ulnar and fibular motor amplitudes may have clinical utility in assessing the likelihood of patients demonstrating electromyographically confirmed C8 and L5 radiculopathies with active denervation. The findings may be particularly useful in patients intolerant of needle electromyography. Muscle Nerve 59:561–561, 2019 |
| doi_str_mv | 10.1002/mus.26442 |
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Introduction: Radiculopathy is diagnosed by needle electromyography, with nerve conduction studies excluding alternative diagnoses. Methods: In patients referred for electrodiagnostic evaluation of radiating limb pain, we compared ulnar motor amplitudes between those with and without electromyographically confirmed C8 radiculopathy, as well as fibular motor amplitudes between those with and without electromyographically confirmed L5 radiculopathy. Results: Patients with electromyographically confirmed C8 or L5 radiculopathy demonstrated decreased ulnar or fibular motor amplitudes, respectively, as compared to patients without radiculopathy. Receiver operating characteristic curves demonstrated good diagnostic accuracy, with areas under the curve of 0.85 and 0.82, respectively. Optimal cut‐offs for electromyographically confirmed C8 and L5 radiculopathies were 10.2 mV and 3.6 mV, respectively, with associated sensitivities/specificities of 0.86/0.74 and 0.92/0.60. Discussion: Ulnar and fibular motor amplitudes may have clinical utility in assessing the likelihood of patients demonstrating electromyographically confirmed C8 and L5 radiculopathies with active denervation. The findings may be particularly useful in patients intolerant of needle electromyography. Muscle Nerve 59:561–561, 2019</description><identifier>ISSN: 0148-639X</identifier><identifier>EISSN: 1097-4598</identifier><identifier>DOI: 10.1002/mus.26442</identifier><identifier>PMID: 30734323</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>Adult ; Aged ; Amplitudes ; Cervical Vertebrae ; Denervation ; diagnosis ; Diagnostic systems ; Diagnostic Techniques, Neurological ; Electromyography ; Female ; fibular nerve ; Humans ; Lumbar Vertebrae ; Male ; Medical diagnosis ; Middle Aged ; Motors ; Muscle, Skeletal - innervation ; Muscle, Skeletal - physiopathology ; Muscles ; Nerve conduction ; Neural Conduction ; Pain ; Pain - etiology ; Patients ; Peroneal Nerve - physiopathology ; radiculopathy ; Radiculopathy - complications ; Radiculopathy - diagnosis ; Radiculopathy - physiopathology ; Sensitivity and Specificity ; ulnar nerve ; Ulnar Nerve - physiopathology</subject><ispartof>Muscle & nerve, 2019-05, Vol.59 (5), p.561-566</ispartof><rights>2019 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3532-81e60feb5f45cda33e6634e643f6c215884917dec676aae328791454de72a9de3</citedby><cites>FETCH-LOGICAL-c3532-81e60feb5f45cda33e6634e643f6c215884917dec676aae328791454de72a9de3</cites><orcidid>0000-0002-9748-697X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fmus.26442$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fmus.26442$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30734323$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>McNeish, Brendan</creatorcontrib><creatorcontrib>Hearn, Sandra</creatorcontrib><creatorcontrib>Craig, Anita</creatorcontrib><creatorcontrib>Laidlaw, Ann</creatorcontrib><creatorcontrib>Ziadeh, Mark</creatorcontrib><creatorcontrib>Richardson, James K.</creatorcontrib><title>Motor amplitudes may predict electromyography‐confirmed radiculopathy in patients referred for radiating limb pain</title><title>Muscle & nerve</title><addtitle>Muscle Nerve</addtitle><description>ABSTRACT
Introduction: Radiculopathy is diagnosed by needle electromyography, with nerve conduction studies excluding alternative diagnoses. Methods: In patients referred for electrodiagnostic evaluation of radiating limb pain, we compared ulnar motor amplitudes between those with and without electromyographically confirmed C8 radiculopathy, as well as fibular motor amplitudes between those with and without electromyographically confirmed L5 radiculopathy. Results: Patients with electromyographically confirmed C8 or L5 radiculopathy demonstrated decreased ulnar or fibular motor amplitudes, respectively, as compared to patients without radiculopathy. Receiver operating characteristic curves demonstrated good diagnostic accuracy, with areas under the curve of 0.85 and 0.82, respectively. Optimal cut‐offs for electromyographically confirmed C8 and L5 radiculopathies were 10.2 mV and 3.6 mV, respectively, with associated sensitivities/specificities of 0.86/0.74 and 0.92/0.60. Discussion: Ulnar and fibular motor amplitudes may have clinical utility in assessing the likelihood of patients demonstrating electromyographically confirmed C8 and L5 radiculopathies with active denervation. The findings may be particularly useful in patients intolerant of needle electromyography. Muscle Nerve 59:561–561, 2019</description><subject>Adult</subject><subject>Aged</subject><subject>Amplitudes</subject><subject>Cervical Vertebrae</subject><subject>Denervation</subject><subject>diagnosis</subject><subject>Diagnostic systems</subject><subject>Diagnostic Techniques, Neurological</subject><subject>Electromyography</subject><subject>Female</subject><subject>fibular nerve</subject><subject>Humans</subject><subject>Lumbar Vertebrae</subject><subject>Male</subject><subject>Medical diagnosis</subject><subject>Middle Aged</subject><subject>Motors</subject><subject>Muscle, Skeletal - innervation</subject><subject>Muscle, Skeletal - physiopathology</subject><subject>Muscles</subject><subject>Nerve conduction</subject><subject>Neural Conduction</subject><subject>Pain</subject><subject>Pain - etiology</subject><subject>Patients</subject><subject>Peroneal Nerve - physiopathology</subject><subject>radiculopathy</subject><subject>Radiculopathy - complications</subject><subject>Radiculopathy - diagnosis</subject><subject>Radiculopathy - physiopathology</subject><subject>Sensitivity and Specificity</subject><subject>ulnar nerve</subject><subject>Ulnar Nerve - physiopathology</subject><issn>0148-639X</issn><issn>1097-4598</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp10U1LHDEYwPEgLe5WPfgFJNBLexjNe2aOIn0RdumhFbwN2cwzmmUyGZMZytz8CH5GP0mzrHoQekogP_4keRA6peScEsIu_JTOmRKCHaAlJZUuhKzKD2hJqCgLxavbBfqU0pYQQkulD9GCE80FZ3yJxnUYQ8TGD50bpwYS9mbGQ4TG2RFDB3aMwc_hLprhfn5-fLKhb1300OBospm6MJjxfsaux3njoB8TjtBCzAnc5vSO5YP-DnfObzJy_TH62JouwcnLeoRuvn_7c_WzWP36cX11uSosl5wVJQVFWtjIVkjbGM5BKS5ACd4qy6gsS1FR3YBVWhkDnJW6okKKBjQzVQP8CH3Zd4cYHiZIY-1dstB1pocwpZrRspJSEy0z_fyObsMU-3y7mjFSCUK1YFl93SsbQ0r5mfUQnTdxrimpd6Oo_S67G0W2Zy_FaZO_602-_n0GF3vw13Uw_79Ur29-75P_APXBldA</recordid><startdate>201905</startdate><enddate>201905</enddate><creator>McNeish, Brendan</creator><creator>Hearn, Sandra</creator><creator>Craig, Anita</creator><creator>Laidlaw, Ann</creator><creator>Ziadeh, Mark</creator><creator>Richardson, James K.</creator><general>John Wiley & Sons, Inc</general><general>Wiley Subscription Services, Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7T5</scope><scope>7TK</scope><scope>7TM</scope><scope>7TS</scope><scope>7U7</scope><scope>7U9</scope><scope>C1K</scope><scope>H94</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-9748-697X</orcidid></search><sort><creationdate>201905</creationdate><title>Motor amplitudes may predict electromyography‐confirmed radiculopathy in patients referred for radiating limb pain</title><author>McNeish, Brendan ; Hearn, Sandra ; Craig, Anita ; Laidlaw, Ann ; Ziadeh, Mark ; Richardson, James K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3532-81e60feb5f45cda33e6634e643f6c215884917dec676aae328791454de72a9de3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Amplitudes</topic><topic>Cervical Vertebrae</topic><topic>Denervation</topic><topic>diagnosis</topic><topic>Diagnostic systems</topic><topic>Diagnostic Techniques, Neurological</topic><topic>Electromyography</topic><topic>Female</topic><topic>fibular nerve</topic><topic>Humans</topic><topic>Lumbar Vertebrae</topic><topic>Male</topic><topic>Medical diagnosis</topic><topic>Middle Aged</topic><topic>Motors</topic><topic>Muscle, Skeletal - innervation</topic><topic>Muscle, Skeletal - physiopathology</topic><topic>Muscles</topic><topic>Nerve conduction</topic><topic>Neural Conduction</topic><topic>Pain</topic><topic>Pain - etiology</topic><topic>Patients</topic><topic>Peroneal Nerve - physiopathology</topic><topic>radiculopathy</topic><topic>Radiculopathy - complications</topic><topic>Radiculopathy - diagnosis</topic><topic>Radiculopathy - physiopathology</topic><topic>Sensitivity and Specificity</topic><topic>ulnar nerve</topic><topic>Ulnar Nerve - physiopathology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>McNeish, Brendan</creatorcontrib><creatorcontrib>Hearn, Sandra</creatorcontrib><creatorcontrib>Craig, Anita</creatorcontrib><creatorcontrib>Laidlaw, Ann</creatorcontrib><creatorcontrib>Ziadeh, Mark</creatorcontrib><creatorcontrib>Richardson, James K.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Immunology Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Physical Education Index</collection><collection>Toxicology Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><collection>MEDLINE - Academic</collection><jtitle>Muscle & nerve</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>McNeish, Brendan</au><au>Hearn, Sandra</au><au>Craig, Anita</au><au>Laidlaw, Ann</au><au>Ziadeh, Mark</au><au>Richardson, James K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Motor amplitudes may predict electromyography‐confirmed radiculopathy in patients referred for radiating limb pain</atitle><jtitle>Muscle & nerve</jtitle><addtitle>Muscle Nerve</addtitle><date>2019-05</date><risdate>2019</risdate><volume>59</volume><issue>5</issue><spage>561</spage><epage>566</epage><pages>561-566</pages><issn>0148-639X</issn><eissn>1097-4598</eissn><abstract>ABSTRACT
Introduction: Radiculopathy is diagnosed by needle electromyography, with nerve conduction studies excluding alternative diagnoses. Methods: In patients referred for electrodiagnostic evaluation of radiating limb pain, we compared ulnar motor amplitudes between those with and without electromyographically confirmed C8 radiculopathy, as well as fibular motor amplitudes between those with and without electromyographically confirmed L5 radiculopathy. Results: Patients with electromyographically confirmed C8 or L5 radiculopathy demonstrated decreased ulnar or fibular motor amplitudes, respectively, as compared to patients without radiculopathy. Receiver operating characteristic curves demonstrated good diagnostic accuracy, with areas under the curve of 0.85 and 0.82, respectively. Optimal cut‐offs for electromyographically confirmed C8 and L5 radiculopathies were 10.2 mV and 3.6 mV, respectively, with associated sensitivities/specificities of 0.86/0.74 and 0.92/0.60. Discussion: Ulnar and fibular motor amplitudes may have clinical utility in assessing the likelihood of patients demonstrating electromyographically confirmed C8 and L5 radiculopathies with active denervation. The findings may be particularly useful in patients intolerant of needle electromyography. Muscle Nerve 59:561–561, 2019</abstract><cop>Hoboken, USA</cop><pub>John Wiley & Sons, Inc</pub><pmid>30734323</pmid><doi>10.1002/mus.26442</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-9748-697X</orcidid></addata></record> |
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| subjects | Adult Aged Amplitudes Cervical Vertebrae Denervation diagnosis Diagnostic systems Diagnostic Techniques, Neurological Electromyography Female fibular nerve Humans Lumbar Vertebrae Male Medical diagnosis Middle Aged Motors Muscle, Skeletal - innervation Muscle, Skeletal - physiopathology Muscles Nerve conduction Neural Conduction Pain Pain - etiology Patients Peroneal Nerve - physiopathology radiculopathy Radiculopathy - complications Radiculopathy - diagnosis Radiculopathy - physiopathology Sensitivity and Specificity ulnar nerve Ulnar Nerve - physiopathology |
| title | Motor amplitudes may predict electromyography‐confirmed radiculopathy in patients referred for radiating limb pain |
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